Closure plug
United States Patent 2491897
US Patent References:
/0682360.html
- - 0682360

Thin metal container
- - 2112085

Metal extrusion press and method of operating same
- - 2388558


Inventors:
Hugo, Lorant
Publication Date:
12/20/1949
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Assignee:
Hugo, Lorant
Primary Class:
72/272
Other Classes:
72/265
International Classes:
B21C23/08; B21C23/21; B21C23/00; B21C23/02